Toshiba e-studio281c - Drive Circuit

11
© 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO281c/351c/451c
DRUM RELATED SECTION
11 - 9
11.7.3 Drive circuit
The circuit configuration is as shown below.
Fig. 11-5
Signal level of motor circuit
Signal level of switching circuit
Signal
Motor
OFF
Reverse
rotation
Normal
rotation
Brake
ENVMT1-0
Wire cleaner drive signal-1
LLHH
ENVMT2-0
Wire cleaner drive signal-2
LHLH
Signal
Level
LH
ENVSNR1-0
Charger wire cleaner front posi-
tion detection signal
Charger wire cleaner is at the front
position
Charger wire cleaner is at the posi-
tion other than the front position
ENVSNR2-0
Charger wire cleaner rear posi-
tion detection signal
Charger wire cleaner is at the rear
position
Charger wire cleaner is at the posi-
tion other than the rear position
LGC board
Engine
CPU
Motor
driver
Gate array
#1
ENVMT1-0
ENVMT2-0
ENVSNR1-0
ENVSNR2-0
M
Charger cleaner
motor
Charger cleaner
front position
detection switch
Charger cleaner
rear position
detection switch
Charger cleaner